The flow net around a sheet pile wall is shown in the sketch. The properties of the soil are: permeability coefficient $0.09 \: m/day$ (isotropic), specific gravity $=2.70$ and void ratio $0.85$. The sheet pile wall and the bottom of the soil are impermeable.

The seepage loss (in $m^3$ per day per unit length of the wall) of water is

- $0.33$
- $0.38$
- $0.43$
- $0.54$